全装配式高桩码头钢质靠船构件设计要点

通过调查研究目前码头采用的混凝土靠船构件应用和施工过程中存在的问题，针对全装配式高桩码头结构的设计需求，将混凝土靠船构件与前沿护舷功能合并，提出一种新型密闭式钢质靠船构件及相应的耐久性措施和结构健康监测方案。该结构由面板、背板和纵横筋板组成并采用密封结构，直接通过预埋螺栓安装于码头前沿，克服了靠船构件安装施工难点，有利于工程施工安全，提高施工效率。     

新型靠船构件及其安装工艺

介绍上海港外高桥高桩码头预制靠船的构件的外形由一字形梁改进的手枪形梁，其安装由传统的钢围囹夹置，悬挂方式改进为自由搁置和预埋螺栓固定，既可不增加工程结构费用，又使施工用料减少，避免构件落江和浇注混凝土时构件移位之虑，并提高了安装护舷的工效。     

集装箱正面吊金属构件常见故障及其修复和预防措施

正作为集装箱码头的重要设备,集装箱正面吊主要用于装卸重箱,其金属构件承载着整机及集装箱质量。金属构件指由金属材料制成的具有一定形状结构并能承受载荷作用的构件。集装箱正面吊主要金属构件包括吊具、吊臂、起升油缸固定部分、整机车架、前后桥等。金属构件正常是保证集装箱正面吊安全运行的关键,若其出现异常或故障,极易造成人员伤亡和财产损失。本文以广州港某集装箱码头为例,在分析集装箱正面吊金属构件故障形式及原因的基础上,提出有针对性的修复和预防措施。     

克令吊底座法兰螺栓的受力计算

利用材料力学最基础的理论应力与应变的关系,对克令吊底座法兰螺栓受力进行分析,重点研究克令吊在吊重时,其底座法兰螺栓的受力变化,对工程设计研究有较好的启迪作用.     

不同吊重下大型回转式起重船的系泊计算

采用MOSES软件计算某大型回转式起重船不同吊重工况下的系泊缆张力及运动响应。通过软件计算结果对比,分析不同吊重形式、风浪流、吊重量、吊距等参数对起重船起吊作业下的系泊缆张力、吊点运动等结果的影响,为今后回转起重船起吊作业的设计方案和施工提供参考。     

钢混复合桩吊运工艺分析

钢混复合桩结合了混凝土管桩造价低和钢管桩抗弯性能好的优点,在满足工程质量要求的前提下又达到了降低成本的目的。对钢混复合桩6点吊的设计计算方法进行推导并结合现场试验进行验证,在此基础上探讨了吊桩参数的敏感性,同时依托工程试验分析了钢混复合桩4点吊与6点吊之间的异同,为钢混复合桩的吊运工艺提供参考。     

基于能量法的船体分段翻身吊装方案优化设计方法

分段翻身吊装难度较大,风险较高,目前主要依靠人工经验设计吊装方案,较少有针对分段翻身的优化设计研究。论文首先对翻身过程中吊绳与相关船体构件的典型干涉问题做出干涉评估并提取干涉约束,结合吊点适应度约束确立若干吊点布置方案。然后以在翻身过程中结构的最大应变能最小为优化目标,得到最优吊点布置方案。最后使用结构分析软件验证最优方案的可靠性。     

1000kN龙门吊安全起吊负荷的核算及标定

中港三航局三公司预制厂使用的1000kN龙门吊是1981年1月建造的，至今已使用了20a。该机主要用于预制场地内的大型码头桩、梁等预制构件的倒运、装船以及用来吊运钢筋笼和型钢等。随着预制构件需求量的不断增大，该机的生产任务日趋繁忙。该龙门吊最大起重量为1000kN是指龙门吊扁担在满吊点受均布载荷作用条件下的工况，而在特殊的工况下，如单点吊、双点吊或多点吊等吊运形式所允许的起重力，则没有明确的规定，容易造成机损和安全事故。如1996年3月3日龙门吊在吊卸钢材时，扁担离主吊点2．5m处出现弯曲变形。因此，我们     

海上钢结构物典型吊点的比较与应用

分析对比海上钢结构物典型吊点的结构形式优缺点和应用范围,提出在吊点的选型和制作时应注意的几个问题。     

沿海码头混凝土构件腐蚀特点及成因

通过对1座运行20多年沿海码头的调查,从混凝土构件的外观状况、保护层厚度、碳化深度和氯离子渗透情况等多个方面,分析沿海码头混凝土构件腐蚀破损特点及成因,总结出混凝土构件的腐蚀主要由氯离子渗透引起,碳化对其耐久性的影响有限。     

第十二届深水操作会议和展览会(英文)

正November 4-6,2014Moody Gardens HotelConvention Center/Galveston,TX The Deepwater Operations Conference and Exhibition is celebrating its 12th anniversary this year.This growing event will continue the tradition of excellence in addressing operational challenges involved in developing deepwater resources.We will return to the Moody Gardens Hotel and Convention Center on November 5-7,2014 in Galveston,Texas.     

The 11th International Conference on Hydrodynamics (ICHD 2014)

正19–24 October 2014 SingaporeCONFERENCE THEMES The overall aim of the ICHD Conference is to provide a forum for participants from around the world to review,discuss and present the latest developments in the broad discipline of hydrodynamics and fluid mechanics.The first International Conference on Hydrodynamics(ICHD)was initiated in 1994 in Wuxi,China.Since then,9 more ICHD conferences were held subsequently in Hong Kong,Seoul,Yokohama,Tainan,Perth,Ischia,Nantes,Shanghai and St Petersburg.Evidently the ICHD conference has become an important event among academics,researchers,engineers and operators,working in the fields closely related to the science and technology of hydrodynamics.The 11th ICHD will be held in Singapore in 2014.     

33rd International Conference on Ocean,Offshore and Arctic Engineering （OMAE2014）

正San Francisco,California,June 8-13,2014.OMAE 2014 is the ideal forum for researchers,engineers,managers,technicians and students from the scientific and industrial communities from around the world to:·meet and present advances in technology and its scientific support;·to exchange ideas and experiences whilst promoting technological progress and its application in industry·to promote international cooperation in ocean,offshore and arctic engineering.In line with the tradition of excellence of previous OMAE conferences,more than 900 technical papers are planned for presentation.Outreach for Engineers Specialty Forum This Specialty Forum is designed for students and professionals who may not be familiar with the Ocean and Offshore industry,as well as those who have just recently specialized in this field.     

Catalyzing Coastal Management in Kenya and Zanzibar: Building Capacity and Commitment

Site-based projects were initiated in Chawka Bay-Paje, Zanzibar, and Nyali-Bamburi-Shanzu, Kenya, to demonstrate the benefits of an integrated coastal management (ICM) approach for addressing coastal issues such as tourism development and enhancement of resource-dependent village economies in eastern Africa. A two-year, multidonor project used three primary strategies to make rapid, but sustainable, progress toward ICM. These included using interagency government teams for ICM planning, adopting an internationally recognized framework for ICM as a project ''road map,'' and explicitly incorporating capacity-building strategies into all aspects of the project. Within two years, integrated ICM action strategies, prepared through participatory processes, were being implemented at both sites, and both teams were working to expand the scale and scope of ICM in their nation. More importantly, the project helped create committed, capable, interagency groups that continue to work together to address urgent ICM issues.     

A simplified method for reliability- and integrity-based design of engineering systems and its application to offshore mooring systems

This paper presents a simplified method for the reliability- and the integrity-based optimal design of engineering systems and its application to offshore mooring systems. The design of structural systems is transitioning from the conventional methods, which are based on factors of safety, to more advanced methods, which require calculation of the failure probability of the designed system for each project. Using factors of safety to account for the uncertainties in the capacity (strength) or demands can lead to systems with different reliabilities. This is because the number and arrangement of components in each system and the correlation of their responses could be different, which could affect the system reliability. The generic factors of safety that are specified at the component level do not account for such differences. Still, using factors of safety, as a measure of system safety, is preferred by many engineers because of the simplicity in their application. The aim of this paper is to provide a simplified method for design of engineering systems that directly involves the system annual failure probability as a measure of system safety, concerning system strength limit state. In this method, using results of conventional deterministic analysis, the optimality factors for an integrity-based optimal design are used instead of generic safety factors to assure the system safety. The optimality factors, which estimate the necessary change in average component capacities, are computed especially for each component and a target system annual probability of system failure using regression models that estimate the effect of short and long term extreme events on structural response. Because in practice, it is convenient to use the return period as a measure to quantify the likelihood of extreme events, the regression model in this paper is a relationship between the component demands and the annual probability density function corresponding to every return period. This method accounts for the uncertainties in the environmental loads and structural capacities, and identifies the target mean capacity of each component for maximizing its integrity and meeting the reliability requirement. In addition, because various failure modes in a structural system can lead to different consequences (including damage costs), a method is introduced to compute optimality factors for designated failure modes. By calculating the probability of system failure, this method can be used for risk-based decision-making that considers the failure costs and consequences. The proposed method can also be used on existing structures to identify the riskiest components as part of inspection and improvement planning. The proposed method is discussed and illustrated considering offshore mooring systems. However, the method is general and applicable also to other engineering systems. In the case study of this paper, the method is first used to quantify the reliability of a mooring system, then this design is revised to meet the DNV recommended annual probability of failure and for maximizing system integrity as well as for a designated failure mode in which the anchor chains are the first components to fail in the system.     

含裂纹钢板复合材料修补强度和刚度数值分析

用ANSYS有限元分析软件对复合材料补片修复含边裂纹和中心裂纹钢板的强度和刚度进行了数值分析.引入相对刚度的概念,研究了钻有止裂孔裂纹的长度对损伤钢板相对刚度的影响,分析了损伤钢板刚度复合材料贴片修补效果;引入屈服载荷提高率的概念,分析了损伤钢板强度的修复效果.     

舰艇反鱼雷技术

对目前舰艇反鱼雷技术中的非杀伤、软杀伤和硬杀伤等比较先进的手段进行了阐述,并在此基础上分析研究了舰艇反鱼雷技术的发展趋势。     

混凝土道路、堆场面层裂缝的产生与防治

从混凝土道路、堆场的各个结构层分析裂缝产生的原因,并针对性地说明预防措施,阐述裂缝维修方法。     

利比亚米苏拉塔市萨瓦瓦区5000套住宅项目中心区设计

从确定符合项目实际情况的设计原则入手,通过利比亚米苏拉塔市萨瓦瓦住宅区中心区总体布局和建筑设计两个方面的设计实践,探讨了"传统、现代与文脉"这一当今时代无法回避的文化议题。并且针对具有鲜明文化、宗教和气候特征的建筑设计的特点、方法与风格进行了总结,为今后的实践提供借鉴。     

Community-Based Management for Sustainable Fisheries Resources in Phang-nga Bay,Thailand

Fishing communities, the Government of Thailand Department of Fisheries, local nongovermnental organizations, universities, the Food and Agriculture Organization of the United Nations (FAO), and FAO's Bay of Bengal Program have undertaken a partnership in management of Phang-nga Bay's coastal resources. It is the first project of its kind in Thailand, and although still in the early stages, offers insights that may contribute to our knowledge of how we can improve our management of coastal resources, including the importance of (1) building relationships within the governance process; (2) combining education, enforcement, and economic incentives to achieve compliance; (3) implementing solutions early; and (4) government support of community-based decisions. These insights reinforce trends emerging in other coastal management projects in the Asian region.